Home / 3,139.08-4,707.79-1,492.35

Finding the Fourth Proportional to 3,139.08, 4,707.79 and 1,492.35

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Solution

The fourth proportional to 3,139.08, 4,707.79 and 1,492.35 is: 2,238.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,139.08 : 4,707.79 = 1,492.35 : x
  2. Step 2: Convert to fraction form
    3,139.08/4,707.79 = 1,492.35/x
  3. Step 3: Cross multiply
    3,139.08x = 4,707.79 × 1,492.35
  4. Step 4: Simplify right side
    3,139.08x = 7,025,670.41
  5. Step 5: Solve for x
    x = 7,025,670.41/3,139.08
  6. Step 6: Final answer
    x = 2,238.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.